| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Computational Thermodynamics and Kinetics
|
| Presentation Title |
O-24: Prediction of Permeability Tensor for Columnar Dendritic Structures: Phase-field and Lattice Boltzmann Simulations |
| Author(s) |
Yasumasa Mitsuyama, Tomohiro Takaki, Shinji Sakane, Yasushi Shibuta, Munekazu Ohno |
| On-Site Speaker (Planned) |
Yasumasa Mitsuyama |
| Abstract Scope |
Accurate prediction of permeability tensor for interdendritic flow is crucial for highly accurate simulation of macrosegregation formed during solidification of alloys. However, there is not enough information regarding the permeability tensor of interdendritic flow. In our previous study, we performed permeability predictions of flow normal to columnar dendrites [Acta Mater., 164 (2019) 237-249]. We also enabled the permeability prediction of flow along an arbitrary direction for columnar dendrites. However, our previous studies were for cell-like dendrites, whose secondary arms were not so developed. In this study, we investigate the permeability tensor for columnar dendritic structures with fully developed secondary arms. Here, we employ the phase-field and lattice Boltzmann methods to predict the permeability. The simulations are performed by parallel GPU computing using a GPU supercomputer TSUBAME3.0 at Tokyo Institute of Technology. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |